STEREO Weekly Meeting Minutes for 2008-11-04 (Week 45)


ANNOUNCEMENTS
-------------

* The APL network outage originally scheduled for November 15 is now scheduled
  to take place November 29.


INSTRUMENT AND SPACECRAFT STATUS
--------------------------------

* All subsystems on both spacecraft are nominal, except that the Ahead
  spacecraft is currently operating on IMU #2.


DISCUSSION AND OPERATIONS CONSTRAINTS
-------------------------------------

Week 44

* Acquisition of signal was 50 minutes late at the start of the Ahead pass on
  station 15 on day 305 (Oct 31).  All SSR data was recovered.

* The 17th momentum dump was performed on Ahead on DAY 304 (Oct 30) at
  12:30 UT.  A Delta-V of 0.065 m/s was imparted.

* The average daily downlink was 6.5 gigabits on Ahead, and 7.5 gigabits on
  Behind.

* Intermittent loss of signal was experienced during the Behind pass on station
  26 on day 304 (Oct 30).  This resulted in the loss of some SSR data.  The
  cause is unknown.

* Command bind was aborted during the Behind pass on station 55 on day 306
  (Nov 1) due to a problem with the uplink equipment.  The problem was repeated
  during the Behind pass on station 55 on day 307 (Nov 2).  DSN reports that
  this is due to a ranging problem affecting the uplink.  This problem was
  thought to have been fixed two weeks ago, but has reappeared.  It is
  suggested that the STEREO mission avoid the use of station 55 for now.

Week 45

* No significant activities.

* The attended tracks will be on Thursday, Nov 6.

* SWAVES reports that a number of Type 3 radio bursts have been seen coming
  from the new cycle active region NOAA 11007.

Week 46

* No significant activities.

Week 47

* No significant activities.



COORDINATED OBSERVATIONS
------------------------

-------------------------------------------------------------------------------
Scheduled activities for Week 45:

M Nov 03 (308)  
T Nov 04 (309)  
W Nov 05 (310)  
T Nov 06 (311)  
F Nov 07 (312)  
S Nov 08 (313)  
S Nov 09 (314)  

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Scheduled activities for Week 46:

M Nov 10 (315)  
T Nov 11 (316)  
W Nov 12 (317)  
T Nov 13 (318)  
F Nov 14 (319)  
S Nov 15 (320)  
S Nov 16 (321)  

-------------------------------------------------------------------------------
Scheduled activities for Week 47:

M Nov 17 (322)  
T Nov 18 (323)  
W Nov 19 (324)  
T Nov 20 (325)  
F Nov 21 (326)  
S Nov 22 (327)  
S Nov 23 (328)  

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Upcoming events:

2008:

SECCHI Stepped calibration rolls
	Ahead:	Dec 16
	Behind:	Dec 2

ICAL-001: Nov 3-7, Dec 1-5

* Nov 29		Planned network outage at APL

2009:

ICAL-001: Jan 5-9, Jan 26-30, Mar 2-6

SECCHI Stepped calibration rolls
	Ahead:	Mar 10, Jun  9, Sep  2, Nov 24
	Behind:	Mar 10, Jun 16, Sep 22, Dec 22

* Jan 15,22		JOP 80, EIT shutterless
* Feb			DAWN - Mars fly-by
* Apr 16,23		JOP 80, EIT shutterless
* Apr			Two week SUMER campaign (TBC)
* May 18		Ahead:  Switch downlink rate to 360 kbps
* Jun 8			Behind: Switch downlink rate to 360 kbps
* Jul 22		Total solar eclipse
	http://eclipse.gsfc.nasa.gov/SEmono/TSE2009/TSE2009.html
* Aug 4			Both: Increase track duration from 4 to 5 hours
* Aug 10		Ahead:  Switch downlink rate to 160 kbps
* Aug 31		Behind: Switch downlink rate to 160 kbps
* Sep 10		Ahead at L4 Lagrange point
* Sep 29		Messenger - Mercury fly-by
* Oct 25		Behind at L5 Lagrange point
* Nov 1-Dec 15		SUMER campaign (TBC)